![( - 15) \times ( - 8 + 3) = ( - 15) \times a \\12 \div 6 \times ( - 9) + ( - 2) \times 8 = a - 6 \\ 17 - (18 - 12) \div ( - 3) = 17 - a \\ 6 - 4 \times 9 + 30 = 6 - a \\ porfavor \: me \: alludan \: ( - 15) \times ( - 8 + 3) = ( - 15) \times a \\12 \div 6 \times ( - 9) + ( - 2) \times 8 = a - 6 \\ 17 - (18 - 12) \div ( - 3) = 17 - a \\ 6 - 4 \times 9 + 30 = 6 - a \\ porfavor \: me \: alludan \:](https://tex.z-dn.net/?f=%28+-+15%29+%5Ctimes+%28+-+8+%2B+3%29+%3D+%28+-+15%29+%5Ctimes+a+%5C%5C12+%5Cdiv+6+%5Ctimes+%28+-+9%29+%2B+%28+-+2%29+%5Ctimes+8+%3D+a+-+6+%5C%5C+17+-+%2818+-+12%29++%5Cdiv+%28+-+3%29+%3D+17+-+a+%5C%5C+6+-+4+%5Ctimes+9+%2B+30+%3D+6+-+a+%5C%5C+porfavor+%5C%3A+me+%5C%3A+alludan+%5C%3A+)
Respuestas a la pregunta
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Respuestas:
A. (-15) × (-8+3) = (-15) × a
-15 × - 5 = -15a
-75 = -15a
5 = a
B. 12 ÷ 6 × (-9) + (-2) × 8 = a - 6
2 × (-9) - 2 × 8 = a - 6
- 18 - 16 = a - 6
- 34 + 6 = a
- 28 = a
C. 17 - (18 - 12) ÷ (-3) = 17 - a
17 - (6) ÷ (-3) = 17 - a
17 + 2 = 17 - a
17 - 17 + 2 = - a
2 = - a
a = - 2
D. 6 - 4 × 9 + 30 = 6 - a
6 - 36 + 30 = 6 - a
6 - 36 + 30 - 6 = - a
- 6 = - a
a = 6
saravvillamizars:
muchas gracias
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